\documentclass{ctexart}
% \usepackage{ctexart}
\usepackage[T1]{fontenc}
\usepackage{inputenc}
\usepackage{float}
\usepackage{array}
\begin{document}
\section{字体族介绍}
关于字体族的部分查看下表\ref{tab:fonttype}
\begin{table}[H]
\label{tab:fonttype}
\centering
\caption{字体族介绍}
\begin{tabular}{m{0.2\textwidth}m{0.4\textwidth}m{0.2\textwidth}m{0.4\textwidth}}
\hline
字体族&命令&转换命令&输出\\
\hline
serif(roman)(罗马字体)&$\backslash$textrm\{Roman font family 罗马字体族\}&$\backslash$rmfamily&\textrm{Roman font family 罗马字体族}\\
sans serif(无衬线字体族)&$\backslash$textsf\{sans serif(无衬线字体族)\}&$\backslash$sffamily&\textsf{sans serif(无衬线字体族)}\\
打印机字体(monospace)&$\backslash$texttt\{monospace打印机字体族\}&$\backslash$ttfamily&\texttt{monospace打印机字体}\\
\hline 
% \textsf{Sans serif font family 无衬线字体族}
% \texttt{Typewriter font family 打字机字体族}
\end{tabular}
\end{table}
字体形状如下图表\ref{tab:fontshape}

\begin{table}[H]
\label{tab:fontshape}
\centering 
\caption{字形（roman字体族）}
\begin{tabular}{m{0.2\textwidth}m{0.4\textwidth}m{0.2\textwidth}m{0.4\textwidth}}
字体形状&命令&切换命令&输出\\
中等&$\backslash$textmd\{sample text文字\}&$\backslash$mdseries&\textmd{{sample text文字}}\\
加粗&$\backslash$textbf\{sample text文字\}&$\backslash$bfseries&\textbf{{sample text文字}}\\
直立&$\backslash$textup\{sample text文字\}&$\backslash$upshape&\textup{{sample text文字}}\\
斜体&$\backslash$textit\{sample text文字\}&$\backslash$itshape&\textit{{sample text文字}}\\
倾斜&$\backslash$textsl\{sample text文字\}&$\backslash$slseries&\textsl{{sample text文字}}\\
小型大写&$\backslash$textsc\{sample text文字\}&$\backslash$scseries&\textsc{{sample text文字}}\\
\end{tabular}
\end{table}
加粗字体你可以这样$\backslash$bfseries\{中文字体\}{\bfseries{字体中文}},你也可以$\backslash$textbf\{中文字体\}\textbf{中文字体}不同在于$\backslash$textbf将修改之后所有的内容的字体格式为粗体。如果希望和textbf一样只定义一段文字需要使用\{\}将整个加粗文字包围起来。例如你可以这样：\{$\backslash$bfseries\{需要加粗的字体\}\}

下面是字体的大小设置见表\ref{tab:fontsize}
\begin{table}[H]
\label{tab:fontsize}
\begin{tabular}{m{0.5\textwidth}m{0.5\textwidth}}
\hline
字体&输出\\
\hline 
$\backslash$tiny\{字体大小\}&\tiny{字体}\\
$\backslash$scriptsize\{字体大小\}&\scriptsize{字体}\\
$\backslash$footnotesize\{字体大小\}&\footnotesize{字体}\\
$\backslash$small\{字体大小\}&\small{字体}\\
$\backslash$normalsize\{字体大小\}&\normalsize{字体}\\
$\backslash$large\{字体大小\}&\large{字体}\\
$\backslash$Large\{字体大小\}&\Large{字体}\\
$\backslash$LARGE\{字体大小\}&\LARGE{字体}\\
$\backslash$huge\{字体大小\}&\huge{字体}\\
$\backslash$Huge\{字体大小\}&\Huge{字体}\\
\hline
\end{tabular}
\end{table}
设置不同的字体家族之后的效果：
\begin{itemize}
	\item $\backslash$setromanfont\{Times New Roman\}
\item $\backslash$setsansfont\{Arial\}
\item $\backslash$setmonofont[Color=\{0019D4\}]\{Courier New\}
	\end{itemize}
\setromanfont{Times New Roman}
\setsansfont{Arial}
\setmonofont[Color={0019D4}]{Courier New}

\begin{table}[H]
\label{tab:fonttype1}
\centering
\caption{字体族介绍}
\begin{tabular}{m{0.2\textwidth}m{0.4\textwidth}m{0.2\textwidth}m{0.4\textwidth}}
\hline
字体族&命令&转换命令&输出\\
\hline
serif(roman)(罗马字体)&$\backslash$textrm\{Roman font family 罗马字体族\}&$\backslash$rmfamily&\textrm{Roman font family 罗马字体族}\\
sans serif(无衬线字体族)&$\backslash$textsf\{sans serif(无衬线字体族)\}&$\backslash$sffamily&\textsf{sans serif(无衬线字体族)}\\
打印机字体(monospace)&$\backslash$texttt\{monospace打印机字体族\}&$\backslash$ttfamily&\texttt{monospace打印机字体}\\
\hline 
\end{tabular}
\end{table}

\end{document}
